In a certain code language. '123' means 'bright little boy', '145' means 'tall big boy' and '637 means 'beautiful little flower'. Which digit in that language means 'bright'?

Options

A. 1
B. 2
C. 3
D. 4

Explanation

To solve the problem, we need to analyze the given coded messages and identify which digit corresponds to the word "bright."

### Step-by-Step Solution:

1. **Identify the Codes and Their Meanings**:
- From the first code: '123' means 'bright little boy'.
- From the second code: '145' means 'tall big boy'.
- From the third code: '637' means 'beautiful little flower'.

2. **Find Common Words**:
- In the first and second codes ('123' and '145'), the common word is 'boy'.
- In both codes, the digit '1' appears, indicating that '1' represents 'boy'.

3. **Analyze the Third Code**:
- In the first code ('123'), the words are 'bright little boy'.
- In the third code ('637'), the common word with the first code is 'little'.
- The digit '3' appears in both '123' and '637', indicating that '3' represents 'little'.

4. **Determine Remaining Digits**:
- Now we know:
- '1' = boy
- '3' = little
- In the first code ('123'), the remaining digit is '2'.
- Therefore, '2' must represent 'bright'.

5. **Conclusion**:
- The digit that means 'bright' is '2'.

### Final Answer:
The digit that means 'bright' is **2**.

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